"The state has been receiving proposals from prospective investors for setting up solar power projects, but due to absence of a well laid out policy, the process has hit a roadblock," Sonowal said while chairing a meeting of the power department here.

The ongoing field development and EOR/IOR projects are expected to produce a cumulative of 54.6 million tonne (mt) of crude oil and 114 billion cubic meter (bcm) of natural gas in the next three to four years, the report said.